Try shopkpi.com, they provide pretty good store and product data across multiple stores. I hope it can help you in researching the niche. Source: about 1 year ago

Our business has been in touch with how a website is doing compared to a vast majority of other websites as a part of the business in Shopgram. The main tool which we had used before was Alexa rankings, Although not perfect, it gave us a quick overview of how a website is doing in a larger picture, but as you may have heard, it's closing soon. Source: over 2 years ago

Someone posted this in the Printful subreddit..... And I don't like it. Https://shopgram.io/. Source: over 2 years ago

We built a tool called Shopgram that lets you browse through products sold across Shopify stores and even see who their suppliers are. Source: over 2 years ago

Hi there again, back with our part 2 of Shopify wrapped in 2021 from Shopgram. Source: over 2 years ago

Most artists just use PayPal, but there is https://arty.ooo/ and they don't disclose your personal info to the clients. There was other similar sites I can't recall just now. There's also crypto but there are caveats. Source: about 1 year ago

I came across arty.ooo, but I find very few reviews on it. I was wondering if anyone else has any experience with it, because for all I know it seems legit but I'd like to hear from other people before using it. Or if others have any alternatives. Source: about 2 years ago

You should be able to use Wise afaik, other than that I recently found this site but haven't used so can't vouch for it: https://arty.ooo/. Source: about 3 years ago